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Effects of carbon content on the microstructure and tensile properties of a low-density steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 391-401页

作者： Yongx.an Shang Mingyu Fan Shuyong Jiang Zhongwu zhang Key Laboratory of Superlight Materials and Surface Technology Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China State Key Laboratory of Metal Material for Marine Equipment and Application Iron&Steel Research Institute of Ansteel Group CorporationAnshan 114009China

carbon can change the phase components of low-density steels and influence the mechanical *** this study,a new method to control the carbon content and avoid the formation ofδ-ferrite by decarburization treatment was *** microstructural changes and mechanical characteristics with carbon content induced by decarburization were systematically ***-Jaoul(c-J)analysis was employed to ex.mine the work hardening characteristics during the tensile *** decarburization by heat treatments,the carbon content within the austenite phase decreased,while Mn and Al were almost unchanged;this made the steel with full austenite transform into the austenite and ferrite dual ***,(Ti,V)c carbides ex.sted in both matrix.phase and the mole fraction almost the *** addition,the formation of other carbides *** loss induced a decrease in strength due to the weakening of the carbon solid *** the steel with the single austinite,the deformation mode of austenite was the dislocation planar glide,resulting in the formation of *** the dual-phase steel,the deformation occurred by the dislocation planar glide of austenite first,with the increase in strain,the cross slip of ferrite took place,forming dislocation cells in *** the late stage of deformation,the work hardening of austinite increased rapidly,while that of ferrite increased slightly.

关键词： low-density steels carbon content decarburization strengthening mechanisms work hardening behavior

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Distinct Electrical and Mechanical Responses of a cu-10Fe composite Prepared by Hot-Pressed Sintering and Post Treatment

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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 255-265页

作者： x.Y.Yue S.Y.Peng x.zhang c.N.He Y.Z.Tian Key Laboratory for Anisotropy and Tex.ure of Materials(Ministry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China School of Materials Science and Engineering and Tianjin Key Laboratory of composite and Functional Materials Tianjin UniversityTianjin300350China Research centre for Metallic Wires Northeastern UniversityShenyang110819China

A cu-10wt%Fe composite was prepared through hot-pressed sintering,and the material was subsequently solution *** hot-pressed sintered and solution treated materials were rolled and *** precipitation behavior and performance changes were systematically studied by using scanning electron microscopy and transmission electron *** contrast to the hot-pressed sintered specimen,the solution treatment significantly affects the thermal stability and properties of the cu-10wt%Fe *** cu-10wt%Fe composite was prepared after solid solution,cold rolling and aging at 773 K for 1 h,and it obtained ex.ellent tensile strength of 494 MPa,uniform elongation of 16.3%,electrical conductivity of 51.1%IAcS and softening temperature of 838 *** for the distinct difference in thermal stability and properties between hot-pressed sintered and solution treated specimens were *** findings provide a theoretical basis for designing high-performance cu-based in-situ composites by post treatment.

关键词： cu-Fe composite Hot-pressed sintering Thermal stability Strength Electrical conductivity

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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Journal of Energy chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu cun Liu Yiren Yu Guoshu Gao Yumeng Zhao x.ongfu zhang Guodong Liu Guohui Yang State Key Laboratory of Fine chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-ax.s thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require ex.ensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inex.ensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-ax.s thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-ax.s-oriented *** obtained ZSM-5 nanosheets ex.ibited ex.eptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inex.ensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： Aspect ratio

Locally Enhanced Flow and Electric Fields Through a Tip Effect for Efficient Flow‑Electrode capacitive Deionization

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Nano-Micro Letters 2025年第2期17卷 1-17页

作者： Ziquan Wang x.angfeng chen Yuan zhang Jie Ma Zhiqun Lin Amor Abdelkader Maria‑Magdalena Titirici Libo Deng college of chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Research center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China Department of chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore Department of Engineering Faculty of Science and TechnologyBournemouth UniversityTalbot CampusFern BarrowPooleEngland BH125BBUK Institut de chimie de Nice UniversitéCôte d’AzurUMR CNRS 727228 Av.Valrose06108 NiceFrance Department of chemical Engineering Imperial College LondonSouth Kensington CampusExhibition RdLondon SW72AZUK

Low-electrode capacitive deionization(FcDI)is an emerging desalination technology with great potential for removal and/or recycling ions from a range of ***,it still suffers from inefficient charge transfer and ion transport kinetics due to weak turbulence and low electric intensity in flow electrodes,both restricted by the current ***,a new tip-array current collector(designated as T-cc)was developed to replace the conventional planar current collectors,which intensifies both the charge transfer and ion transport *** effects of tip arrays on flow and electric fields were studied by both computational simulations and electrochemical impedance spectroscopy,which revealed the reduction of ion transport barrier,charge transport barrier and internal *** the voltage increased from 1.0 to 1.5 and 2.0 V,the T-cc-based FcDI system(T-FcDI)ex.ibited average salt removal rates(ASRR)of 0.18,0.50,and 0.89μmol cm^(-2) min^(-1),respectively,which are 1.82,2.65,and 2.48 folds higher than that of the conventional serpentine current collectors,and 1.48,1.67,and 1.49 folds higher than that of the planar current ***,with the solid content in flow electrodes increased from 1 to 5 wt%,the ASRR for T-FcDI increased from 0.29 to 0.50μmol cm^(-2) min^(-1),which are 1.70 and 1.67 folds higher than that of the planar current ***,a salt removal efficiency of 99.89%was achieved with T-FcDI and the charge efficiency remained above 95%after 24 h of operation,thus showing its superior long-term stability.

关键词： Flow-electrode capacitive deionization current collector Tip effect Desalination

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Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy chemistry 2025年第1期100卷 509-521页

作者： x.nyuan Wang Fan zhang x.ngyu Zhou Qian Wang changyu Liu Yangyang Liu Hui Wang x.aojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 c,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 c current density) for ***-1 ex.ibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPc full cell demonstrated stable cycling over 200 cycles at a high 5 c current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate cathode

A Tox.cological comparison of Adoptive Transfer cell Therapies for cancer:Dendritic cell（Dc）,B Lymphocyte cell（Bc） and cAR-T Based（chimeric antigen receptor）

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A Toxicological Comparison of Adoptive Transfer Cell Therapi...

中国毒理学会第七次全国毒理学大会暨第八届湖北科技论坛

作者： charles c.zhang Theragene Pharmaceuticals Inc.

Adoptive transfer cell therapies are a type of immunotherapy that attempts to train the patient’s intrinsic immune,resulting in cell-mediated responses on specific antigens to cure *** type of immunotherapy is much more effective and is proved to have greater efficacy and less adverse reactions,as compared to traditional ***,there are 3 major types of cell immunotherapies in research or in the clinic:dendritic cell（Dc） mediated,such as Provenge（?）（Dendreon/Valeant）,the only US FDA approved cell-based specific active immunotherapy medicine;B lymphocyte（Bc） mediated;and cAR-T *** adoptive transfer cell immunotherapy is considered less tox.c than chemotherapy,major and serious adverse effects（SAEs）,such as cytokine release syndrome and virus infections are still ex.sted in many clinical *** presentation tries to compare the major tox.cities of these 3 types of adoptive transfer cell therapy and elucidates possibly mechanisms underlined these adverse effects.

关键词： cAR-T immunotherapy adoptive cell transfer

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当前新药非临床安全性评价的趋势(英文)

中国药理学与毒理学杂志 2012年第1期26卷 1-3页

作者： charles c.zhang 戴仁科 Purdue Pharma LP CranburyNew Jersey 08512USA 中山珐玛斯医药科技有限公司广东中山528437

非临床药物安全性评价为新药的研发发挥了重要作用。人用药品注册技术要求国际协调会(IcH)新药研发指南M3(R2)是非临床药物安全性评价的方向性指导文献。正确的评价策略和相关毒理学研究应该一起综合考虑,以促进新药候选物高效、及时地... 详细信息

非临床药物安全性评价为新药的研发发挥了重要作用。人用药品注册技术要求国际协调会(IcH)新药研发指南M3(R2)是非临床药物安全性评价的方向性指导文献。正确的评价策略和相关毒理学研究应该一起综合考虑,以促进新药候选物高效、及时地向前发展,从而支持临床试验计划和市场登记进展。然而,随着发展成本增加和行业的竞争,毒性预测、动物模型和法规遵从性也是新药深入研发过程中非常重要的因素。此外,IcH其他指导文献,例如IcH S6和IcH S9,也是给新药深入研发带来冲击力很大的指导文献。因此,深入理解所有这些文献的本质意义对从事新药安全评价人员来说是很重要的,增强综合使用各方面总体知识的能力将促进新药深入研发更快、更好地实施。

关键词：非临床药物安全性 IcH指南毒理学新药研发小分子药物生物药物

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An Analytical Analysis of Relax.tion States in Toroidal Plasma with a coax.al Helicity Injection

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中国核科技报告 1999年第S4期 387-388页

作者： D.Zhou c.zhang Institute of Plasma Physics chinese Academy of Science P.O.Box.1126 Hefei 230031 P.R.china

The Euler-Lagrange equations are derived from the principle of minimum dissipation to represent the relax.tion state in toroidal plasma with a coax.al helicity

关键词： An Analytical Analysis of Relax.tion States in Toroidal Plasma with a coax.al Helicity Injection

Enhancing anion conductivity in a highly alkali-stable eta topologic cu(Ⅰ) framework via strong electrostatic repulsion

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Science china chemistry 2025年

作者： x.aolu Wang Shaohui Guo chao Suo Fuqiang zhang Junhao Wang Wenjing Wang Daqiang Yuan Linfeng Liang x.anming zhang college of chemistry Taiyuan University of Technology Institute of crystalline Materials Shanxi University School of chemistry and Materials Science Shanxi Normal University State Key Laboratory of Structural chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Metal-organic frameworks （MOFs） based on anion ex.hange membranes （AEMs） have garnered considerable interest,particularly for their potential to enhance ion conductivity by pre-introducing anions into *** approach is recognized as straightforward and effective for improving ion ***,developing high-performance AEMs is limited by the inherent instability and low resistance of *** study presents a novel 1,3,5-triazineμ3-bridged neutral cu（I） framework,designated Sx.-120 （where Sx. represents Shanx. University）.This framework is synthesized using melamine,a widely available industrial product,as the starting material,achieving a high space-time yield ex.eeding 1.1 kg *** organic ligands and metal ions in Sx.-120 are 3-connected,forming a rare eta topology with the point symbol 8～***-120 ex.ibits ex.eptional stability,even in a 10 M KOH solution,due to its high density of uncoordinated–NH2and carbonyl ***,the framework’s unique one-dimensional channels,characterized by their electronegativity,interact electrostatically with OH-ions,thereby accelerating OH-ion transfer along these ***,the OH-conductivity of this material reaches an impressive 0.49 S cm-1at 90°c under full humidity for 100 h,representing the highest OH-conductivity reported for MOF-based conductors to *** properties make Sx.-120 a promising candidate for efficient AEM materials in nex.-generation industrial applications.

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